For what it's worth (admittedly, probably not much!), here's my $0.02.
I've ordered several SG Workshop DVDs in the past (I love yours, Mr. Miller!) but have since become a convert to the downloaded LeapBrain versions. Why? Well, I watch the DVDs on my laptop anyway, plus, I love being able to order the vids, download them, and then be watching 'em within a mere 5-10 minutes! I
hate waiting weeks for DVDs to arrive!!!
Of course, I live in Canada, so that probably slows down delivery a wee bit.
Having said all that, the quality is a little better on the DVDs; however, the LeapBrain versions are more than adequate (for me at least). Not as if I require guitar lessons in hi-def!
In fact, I usually make an .avi file of all the DVD lessons I have, so that I can access them on my computer along with the LeapBrain ones.
Another bonus is that as long as I have an account with SG, I can download the lessons to any other computer of mine. So portability is there. That was the clincher for me:
always having access to the lessons - even if my current computer bonks out on me ... which, if history is any indication, is inevitable!
Anyway, I'm a computer-y, laptop-y kinda guy, so this works for me.